William l



(No Model.)

W. L. OGDEN.

' DRAIN PIPE DIE.

Patented Jan. 24,1882.

J %%mm, mm.

llwirnn STATES.

ATnNr @rrrcn.

WILLIAM L. OG DEN, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE-HALF v TO ISAAC OGDEN, F SAME PLACE.

, SPECIFICATION forming part of Letters Patent No. 252,693, dated January 24, 1882.

Application filed June 7, 1861. (No model.)

To all whom it may concern:

Be it known that I, \VILLIZUI L. OGDEN, residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Drain- Pipe Dies, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

My invention relates to an improvement in dies for drain-pipe machines; and it Consists in an improved device for cutting off the finished pipe inside the mold for the socket by applying a wire through a slit in the sides of the mold or die.

It also consists in an improved mode of operating the vent-valves upon the socket-mold. In the drawings annexed, Figure 1 is aside view of my improved die fitted to the bottom of a press-cylinder, A, from which the clay is forced into the die by any suitable means. Fig. 2 is a section in plan made on line y y in Fig. 1; and Fig. 3 is a sectional elevation on line m or in Fig. l, the view being transverse to that in Fig. 1.

B is a flange held to the cylinder A by the bolts 0, and having attached to it a die for the body of a drain-pipe, and a mold, D, for the collar or socket usually provided at one end of each length of the pipe.

E E are bolts passing through lugs c 0, formed upon opposite sides of themold D, and formed with hooked headsF at their lower ends to sustain a bar or brid e-piece, G, carrying the socket-core H.

A flange perforated with holes in is shown, formed at the base of the core H, and its shape is such, as shown in Fig.3, that when inserted in the lower end of the mold D the flange closes the mouth of the mold, with the exception of 0 the circle of vent-holes m.

A core, K, is shown suspended inside the die in the usual manner, and the opening in the flange B permits the clay to escape around the core in the annular space marked 70, to form the body of the pipe. The mold D is adapted to form the exterior of the socket required upon the pipe, and the core H to form its interior, the upper end of the socket-core fitting tightly against the lower end of the pipe-core K, and

5o forcing the clay to fill the socket-mold until it sages h, and thus preventing any movement of the valve by the clay or the escape of clay into the space outside it, and in moving the valve at the proper time by hand to avoid the uncertainty of action attending an automatic valve operated merely under the pressure of inflowing air. To eft'eet these objects I form the airpassages-h through the sides of the mold D,

I and form the valves of rods i, inserted in vertical holes across the former, so that the rods obstruct the air-passages when pressed downward by the springs g. The springs are secured to the under side of the flange B, and the valves are lifted against the pressure of the springs by alever-ring, f, having free ends pivoted to lugsjj, formed upon the exterior of the die, and its curved part extended around three sides of the die to connect with the two valves i and be within reach of the hand of the oper- 8o ator. If preferred, a spring or weight can be applied to the ring or lever instead of the rods 5, its pressure being employed merely to keep the valves closed when pushed shut. By this construction the passages h are efl'ectually 8 5. closed to the entrance of clay while the socketmold is beingfilled, and can be readily opened to let air into the mold when the socket is expelled. I

The device for cutting off the finished pipe when the socket and a suitable length of pipe have been expelled from the die consists in a slit, a, formed transversely across the die below the core K, and a wire, 6, strained in a movable frame and operated by hand to trav- 5 erse the slit across the path of the pipe. To form such a slit in the walls of the dieor mold the latter may be made in two parts, united by bolts or provided with projections like the lugs c cbeyond the circumference of the circular walls, and the slit can then be formed, as shown in the drawings, by a turning tool operating from the inside of the die, the projec tions 0 0 serving to keep the upper and lower parts together when the annular part of the die is severed.

In Fig. 3 the slit is shown arranged at a level with the end of the pipe core K, that the wire may out against the end of the core and avoid bending the pipe.

in Fig. 1 will be seen how the slit cuts the mold I) entirely'in two horizontally, excepting the lugs c c, utilized for the bolts E.

To operate the wirel strain it across a bow or U-shaped l'rame, J, the bent end ot'thelatter being suspended by a string, I), to any higher point, as (1, upon the pipe-press, and the wire being operated when the frame is either pulled or pushed by the hand.

With this device the pipes are cut oil much more smoothly than by any system ofknives operating from the inside core.

I am aware that wires have been used for cutting in a mode similar to mine, as in United States Patent No. 197,853, issued December 4, 1877, for the manufacture of earthenware vessels, and in British Patent No. 1,715 of 1870; and I do not therefore claim the use of a wire, broadly, but only its combination with the other elements of the device which I have invented.

I therefore claim my invention as follows:

1. In combination with the vent-passageofa clay-pipe mold or die,a rod closing the passage by a. movement at right angles thereto, and mechanism for openingand closing the same by hand, substantially as herein set forth.

2. The combination of the mold D, formed with the slit 0!, and provided with lugs c c for uniting the parts abo e and below the slit, and the frame J, provided with the wire 6, arranged to pass through the slit and operated by hand to cut off the finished pipe, as herein shown and described.

In testimony whereofI have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM L. OGDEN.

\Vitnesses:

THos. S. CRANE, J. H. ARMl'IAGE. 

